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ale4655 [162]
3 years ago
7

Suppose 8 people want to communicate with each other using public key encryption. The communication between any pair of them is

visible to all of them but no other person other than the pair should be able to decode their communication. How many public and private keys are required for this group?
Computers and Technology
1 answer:
ludmilkaskok [199]3 years ago
5 0

Answer:

The answer is "64"

Explanation:

There has been 1 Private Key 1 Public Key for every person. The private key is used for other app messages. All else uses the Public Key to encrypt messages with that user. Those keys are numerically related. Even if you have 5 users, you will be given 5 Personal keys and 5 Public keys.

  • All user will have a duplicate of other public keys, which indicates (n*n-1) copies of n public keys on different systems to make sure shared contact between all users, plus n private keys.
  • The unique key count is 2n, with n^2 distributed private and public keys on different systems.
  • 8 people,  where 8 is a number, that is equal to n so, n^2 = 8^2 =8 \times 8 = 64
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Create a program that prints out a list of all the divisors of a number stored in a variable. (If you don’t know what a divisor
UkoKoshka [18]

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// Program is written in C++ Programming Language

// Comments are used for explanatory purpose

// Program starts here

#include<iostream>

using namespace std;

int main()

{

// Declare integer variable n which serves as the quotient.

int n;

// Prompt to enter any number

cout<<"Enter any integer number: ";

cin>>n;

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7 0
3 years ago
In 1964 in London, Ontario one could buy a chili-dog and a root beer for $1.25, today the same chili dog and root beer cost $5.0
Marta_Voda [28]

Answer:

3% inflation rise. No correct cpi option

Explanation:

Consumer Price Index(CPI) is calculated by the Bureau of Economic Analysis and Statistics of a country monthly and annually.

Consumer Price Index(CPI) is used for measuring the changes in the price level of consumer goods and services purchased by households.

Calculating the consumer price index; price in 1964= $1.25, today price= $5.0.

Therefore, consumer price index= Price in today- price in 1964÷ price in 1964,.

Consumer Price index(CPI)= $(5-1.25)/1.25 = 3.75/1.25 = 3 Percent price inflation rise.

For the first cpi; 112-80/80= 0.4 percent( not equal to the 3 Percent inflation rise).

For the second cpi: 141.6-60/60= 1.36 Percent inflation rise(not equal to the 3 Percent inflation rise).

For the third CPI: 126.4-75/75 =0.68 percent inflation rise[not equal to the 3 Percent inflation rise].

For the third CPI: 108.5-90/90=0.21 percent inflation rise(not equal to 3 Percent inflation rise)

Therefore, none of the options are right.

5 0
3 years ago
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